Home / 142,676,469.80-214,021,703.10-74,652,021.80

Finding the Fourth Proportional to 142,676,469.80, 214,021,703.10 and 74,652,021.80

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Solution

The fourth proportional to 142,676,469.80, 214,021,703.10 and 74,652,021.80 is: 111,981,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,676,469.80 : 214,021,703.10 = 74,652,021.80 : x
  2. Step 2: Convert to fraction form
    142,676,469.80/214,021,703.10 = 74,652,021.80/x
  3. Step 3: Cross multiply
    142,676,469.80x = 214,021,703.10 × 74,652,021.80
  4. Step 4: Simplify right side
    142,676,469.80x = 15,977,152,845,494,326
  5. Step 5: Solve for x
    x = 15,977,152,845,494,326/142,676,469.80
  6. Step 6: Final answer
    x = 111,981,694.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.